import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;

/**
 * Created with IntelliJ IDEA.
 * Description:
 * User: 26727
 * Date: 2024-08-03
 * Time: 12:38
 */
@WebServlet("/hello")
public class HelloServlet  extends HttpServlet {
    @Override
    protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
//        super.doGet(req, resp);
//        这是在服务器的控制台中,打印了字符串(服务器看到了,但是客户端看不到)
        System.out.println("hello world");
//        这是给 resp 的 body 写入 hello world 字符串，这个内容就会被 HTTP 响应返回给浏览器，显示到浏览器页面上
        resp.getWriter().write("hello world");
    }

    @Override
    protected void doPost(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
        resp.getWriter().write("do post");
    }
}
